Start With The Commercial Model
Before designing tables or screens, define who pays, who uses the product, what an account owns and which workflows create business value. This keeps the technical architecture aligned with the way the product will be sold and operated.
Design Tenant Boundaries Early
Multi-tenant SaaS products need a clear answer to one question: which records belong to which customer account? Agencies, companies, workspaces or teams should own the operational data, and every important query should respect that boundary.
Separate Roles From Features
Owners, managers, staff and administrators should not all have the same view of the system. Role-based access keeps the product safer and helps the interface stay focused for each user type.
Plan Billing Without Blocking The MVP
Even when payment gateway integration comes later, the database should understand plans, subscription states and account access. This avoids painful rewrites when the product moves from prototype to commercial launch.
Keep Reporting In The Data Model
Dashboards become weak when the database only stores display text. SaaS products should store structured status, dates, ownership and activity records so reporting can answer real business questions.